Tetrabutylammonium Fluoride → 5-(4-Bromo-3-methyl-phenyl)-3-(3,5-dichlorophenyl)-3-(trifluoromethyl)-2,4-dihydropyrrole

HRID 241513Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 241513
CS[C:3](=[N:12][CH2:13][Si](C)(C)C)[C:4]1[CH:9]=[CH:8][C:7]([Br:10])=[C:6]([CH3:11])[CH:5]=1.[Cl:18][C:19]1[CH:20]=[C:21]([C:26](=[CH2:31])[C:27]([F:30])([F:29])[F:28])[CH:22]=[C:23]([Cl:25])[CH:24]=1.[F-].C([N+](CCCC)(CCCC)CCCC)CCC>C1COCC1>[Br:10][C:7]1[CH:8]=[CH:9][C:4]([C:3]2[CH2:31][C:26]([C:21]3[CH:22]=[C:23]([Cl:25])[CH:24]=[C:19]([Cl:18])[CH:20]=3)([C:27]([F:28])([F:30])[F:29])[CH2:13][N:12]=2)=[CH:5][C:6]=1[CH3:11]

Komponenten

5

Edukt 3

HCID 2724141Tetrabutylammonium FluorideHCID 231598231,3-Dichloro-5-(3,3,3-trifluoroprop-1-en-2-yl)benzeneHCID 668366694-bromo-3-methyl-N-trimethylsilanylmethyl-thiobenzimidic acid methyl ester

Produkt 1

HCID 866910465-(4-Bromo-3-methyl-phenyl)-3-(3,5-dichlorophenyl)-3-(trifluoromethyl)-2,4-dihydropyrroleAusbeute 75 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

To a solution of 4-bromo-3-methyl-N-trimethylsilanylmethyl-thiobenzimidic acid methyl ester (4.40 g, 13.3 mmol) in dry THF (60 mL) was added 2-(3,5-dichlorophenyl)-1,1,1-trifluoro-2-propene (4.35 g, 16.25 mmol) at −7° C. A solution of tetrabutyl ammoniumfluoride (5.32 mL, 1 M in THF, 5.33 mmol) was added at this temperature and the mixture was allowed to warm to room temperature over night. All volatiles were removed in vacuum. The residue was purified by flash chromatography on silica gel to give the title compound (4.50 g, 75%).

Aufarbeitung

  1. customAll volatiles were removed in vacuum
  2. customThe residue was purified by flash chromatography on silica gel

Quellen und Nachweise

ORD-Eintrag
ord-008647fd4d7447f2a5e3f27bf0253311
Quelldatensatz
uspto-grants-2014_02
Patentnummer
US08653000B2

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